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公开(公告)号:US643043A
公开(公告)日:1900-02-06
申请号:US1899721568
申请日:1899-06-23
Applicant: DAVIDSON DAVID NEWTON
Inventor: DAVIDSON DAVID NEWTON
CPC classification number: A24C5/44
公开(公告)号:US643043A
公开(公告)日:1900-02-06
申请号:US1899721568
申请日:1899-06-23
Applicant: DAVIDSON DAVID NEWTON
Inventor: DAVIDSON DAVID NEWTON
CPC classification number: A24C5/44